Excel CSV Data Entry Assistance

I have a collection of CSV files that need to be imported quickly and accurately into a master Excel workbook. The job is strictly Excel-focused, centering on clean data entry rather than formulas, macros, or analysis.

Here is what matters to me:
• Each CSV file must be opened, reviewed for obvious errors (such as misplaced delimiters), and then copied into the correct worksheet tab without altering field names.
• Numbers stay as numbers, dates retain their original format, and text strings remain untouched—no unintended auto-formatting.
• Final delivery is a single .xlsx file that mirrors the structure of the source files and passes a spot-check for 100 % accuracy.

I usually handle Word and PowerPoint tasks myself, but familiarity with those apps would be a nice bonus for future phases.

Please confirm your turnaround time and any relevant experience working with large batches of CSV-to-Excel data.